CERN Accelerating science

ATLAS Note
Report number	ATLAS-CONF-2010-070
Title	Tracking Studies for $b$-tagging with 7 TeV Collision Data with the ATLAS Detector
Corporate Author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Publication	2010
Imprint	28 Jul 2010
Number of pages	23
Note	All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2010-070
In:	35th International Conference on High Energy Physics, Paris, France, 22 - 28 Jul 2010
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	BTAGGING ; TRACKING ; 7TeV ; B-TAGGING ; BTAGGING ; TRACKING
Abstract	The ability to identify jets containing b-hadrons is important for the physics program of ATLAS. This capability relies on the precise measurements of the parameters of charged tracks provided by the ATLAS Inner Detector. Using the 7 TeV collision data collected by the experiment in early 2010 and improved alignment and a more precise error description with respect to previous data taking periods, the tracking performance of the ATLAS Inner Detector has been assessed. Some of the studies relevant for b-tagging are discussed in this note, in particular the track properties and notably the impact parameter resolution.
Copyright/License	Preprint: (License: CC-BY-4.0)

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